Eyeglass-mounting.



E. J. R. BEATTEY.

EYEGLASS MOUNTING.

APPLICATION FILED JULY 29.1916.

1 U. 5 9U Patented June 25, 1918.

Mark] W MW .To all whom it may concern:

. t immunity JEAJRLE JI. R. BEATTEY, 01E PROVIDENCE, BHOJDE ISLAND, ASSIGNOR TO UNIVJEESM .UPTICAL CORPORATIUN, OF, PROVIDENCE, RHODE ISLAND, A. CORJEQMTIUN 0F RHOJDIE ISLAM JD.

Be it known that I, EARLE J. R. BEATTEY, a citizen of the United States, and a resident of the city of Providence in the county of Providence and State of Fhode Island, have invented certain new and useful ][mprovements in Eyeglass-Mountings, ot' whichthe followin is a specification.

This invention re ates to spring clamps to serve as straps or end pieces for all'styles and kinds of eye-glasses, which includes spectacles, goggles or other styles of lens mountings, and has for its object to provide a clamp ofthis character with one or more resilient arms or connecting portions, which are adapted to engage, grip and releasably secure the lens between them, and that without the employment of the usual attaching cement or binding screws, whereby the lens may be readily withdrawn from the mounting and a fresh one inserted when desired.

In practice Where lenses of difl'erent shapes and sizes are being tried on and fitted to the patient, it has heretofore been necessary with the ordinary t pe of mounting to remove the screws rom the lens straps and end pieces and replace them each time a change is made. This operation takes some time and is often obliged to be repeated many times before the patient is satisfied, and finally accepts the particular style which appears to be best suited to him.

In order to facilitate the ready removal and replacement of the lenses, I have provided a spring clamp provided with inwardly turned portions adapted to snap into the screw holes or identations in the side facesof the lensto firmly yet releasably retain the same in the mounting while being tried on.

This construction of spring strap may be also employed as a permanent connection in attaching the lens to the mounting if desired.

A further object of the invention is to so shape a spring clamp that it may serve as an auxiliary strap or end piece, and to provide the same with means whereby it may be readily attached to these portions, the ends of these auxiliary clamp straps being provided with inwardly turned portions adapted to snap into and project through the screw holes of the strap or end piece and specification of Letters Patent.

extend into corresponding holes or indentations in the lens to releasably secure the same in the mounting while being tried on.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

. In the accompanying drawings:

Figure 1- is a side elevation showing a spring lens strap provided with inwardly turned projections to serve as a spring clamp for engaging the lens.

Fig. 2-- is a perspective view showing an end piece member as provided with resilient. arms having inwardly turned projections to serve as a spring clamp for releasably engaging the lens.

Fig. 3 shows the arms of the clamp as provided with inwardly turned projections engaging the screw hole in the lens.

Fig. 4.- shows the rojections in the clamps engaging identations in the lens.

Fig. 5- shows the extremities of the clamp arms as bent inward to engage the screw hole inthe lens.

Fig. 6-,is a detail showing a perspective view of another form of my improved clamp as cut from sheet stock and showing a tab on one end for receiving a number.

Fig. 7- is an end view of the clamp bent up into operative form.

Fig. 8- is a view showing my improved spring clamp serving as an auxiliary to the ordinary lens strap for releasably securing the lens therein. a

Fig. 9- is a view partly in section show- Patented June Q5, TQM.

Application filed. July $9, 1916. Serial No. 111,9t3.

ing this clamp as applied to the ordinary lens strap with its inwardly turned projections passing through the screw holes in the strap and engaging recesses in the lens to releasably secure the lens in the strap.

Referrin to the drawings 10 designates one form 0 spring lens clam which may be made in the shape of the ordinary strap 8 as shown in Fig. 1 or in the form of an end piece 9 shown in Fig. 2. The clamp may be attached by any sultable means to the nose bridge portion 11 when used as a strap, or to the usual temple (not shown) when used as an end piece as shown in Fig. 2. The arms 12 of this clamp may be resilient to engage the lens 13 by spring pressure, or the connecting bridge portion 7 of the clamp may rec of arms 18 also be resilient, and in somecases one arm of theclamp may be resilient and the other stiff and unyielding if desired. The ends of these clamp arms 12 in some cases are provided with inwardly turned projecting bosses or lugs 14, see Figs. 3 and 4 which are secured. to these arms by riveting or otherwise. In some cases these inwardly turned projections engage corresponding recesses 15 in the lenses as illustrated in Fig. 4. In other casesthese projections enter the screw hole 16in the lens asillustrated in Fig. 3. Then againfin some cases the extremities 17 of these arms may be turned inward as illustrated in Fig. 5 if desired to engage the screw hole '16 in the lens to firmly yet removably secure the lens in position in the mounting. In some instances it is found quite practicalto employ this form of spring strap as a insane for permanently securing the lens to the mounting as by its use the usual clamping screw which is continually becoming loosened is done away with, and the lens is more firmly held in position under spring pressure, which prevents it from becoming broken which often occurs by an undue pressure brought to bear upon the lens by setting up the screw by thisconstruction in the case of breakage the lens may be readily removed and a fresh one positioned therein. The primary object of my present invention is the use of this spring clamp strap in so-called eye-glass fitting sets, such as those employed by Opticians in determining the size|and shape of lenses best suited to the difiere'nt faces to which they are being fitted. In such cases it is often found necessary to remove and replace quite a number of different lenses in the mounting before the proper size and shape is found to satisfy the patient, each change necessitating the removal and replacing of the screw through the strap and lens requiring considerable time and labor. To simplify this attaching operation, I have provided a spring clamp such as that illustrated in Figs. 6 to 9 inclusive, the same being struck up out of sheet stock as illustrated in Fig. 6 and provided with a pair connected together by a bridge portion 19. The ends of these arms are pro vided with inwardly extending bosses 20 having rounded or beveled ends 21. A portion of the bridge is cut away as at 22, see Fig. 6, whereby this clamp may be passed over the arms of the usual strap 28 and ositioned so that its bridge portion 19 wil engage the saddle portion 24 of the mounting, and the bosses 20 will extend through the screw holes 25 in the strap arms to engage the lens. In this way a lens may be readily too hard. Then again positioned in the strap and the bosses will engage the depressions 26 in the lens of the fitting sets to firmly yet releasably hold the lens in the mounting during the trying on operation. The clamp as illustrated in Fig. 6 shows a tab or extending portion 27 which may be provided. on one end of this clamp for the purpose of receiving an identifying character. This auxiliary clamp may also be fitted to engage the usual end piece (not shown).

By the term eye-glass mounting in the speci cation and claims I mean any device adapted to support lenses on the face of the wearer.

By bridge portion in claims I mean that two spring arms of bridge I mean that the two lenses.

I have shown and described an illustrative embodiment of my invention but I desire it to be understood that although specific terms are employed they are used in a generic sense and .not for the purpose of limitation, the scope of the invention being defined by the appended claims.

claim:

. 1. An auxiliary spring clamp for eyeglass mountings comprising a pair of resilient arms connected by a bridge member, one or both of said arms being provided with inwardly projecting members for engaging corresponding holes in the lens by spring pressure, and the ends of said projecting members being beveled to facilitate their the specification and portion connecting the the clip and by nose member 11 connecting ready entrance to and withdrawal from said holes.

2. An auxiliary spring clamp for eyeglass mountings comprising a bridge member having oppositely disposed resilient arms, projections extending inwardly from one or both of said arms for extending through the screw. openings of the usual lens straps for engaging corresponding apertures in the ens.

3. An auxiliary spring clamp for eyeglass mountings comprising a pair of opposlng resilient arms connected by a bridge member, said arms being provided with inwardly turned portions adapted to extend through the screw openings of the usual lens strap, the same being provided with an opening in the bridge portion to permit of its being positioned on the mounting strap.

In testimony whereof I afiix my signature in presence of a witness.

EARLE J. R. BEATTEY. 

